Home / 2,643.85-3,965.95-888.72

Finding the Fourth Proportional to 2,643.85, 3,965.95 and 888.72

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Solution

The fourth proportional to 2,643.85, 3,965.95 and 888.72 is: 1,333.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.85 : 3,965.95 = 888.72 : x
  2. Step 2: Convert to fraction form
    2,643.85/3,965.95 = 888.72/x
  3. Step 3: Cross multiply
    2,643.85x = 3,965.95 × 888.72
  4. Step 4: Simplify right side
    2,643.85x = 3,524,619.08
  5. Step 5: Solve for x
    x = 3,524,619.08/2,643.85
  6. Step 6: Final answer
    x = 1,333.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.